All my folders are set to sort messages by date received. I first read all my messages Online, deciding whether to delete or download.

Some msgs I want to keep permanently and drag-and-drop into the Personal folder.

If I drag-and-drop the msg directly from the Online folder into Personal without first downloading via the Inbox, then the msg is not sorted by date received, but can be anywhere in the Personal folder - at least I presume this is the reason. Is this behaviour normal, or am I doing something wrong?